TCP Server
The TCP Server plugin allows you to accept and manage incoming connections over TCP. It enables you to maintain multiple client connections at once, focus on specific client communications through filters, and gain full control over the TCP socket, like TCP Connection. This makes it an invaluable tool for troubleshooting and debugging client-side projects.
Capabilities
Required
| Required for accepting network connections. |
Optional
| Required for establishing IPv6 connections. | |
| Enables the packet history & packet library panes. | |
| Enables the regex-based markup of binary data in the log. |
Basic Setup
- In IO Ninja, click the “New Session” dropdown and select “TCP Server”.
- Set the adapter and port.
For example, if you wanted to listen for IPv4 traffic on port 2000, then you would set the adapter to “All IPv4 adapters” and the port to “2000”.
- Click the “Listen” button to start listening to traffic.
- Analyze the log as TCP requests are made to the server.
- Adjust settings as needed via the “Settings” button (see “Settings” section below for details).
Settings
| Setting | Description | Default |
|---|---|---|
| Adapter | Provides a list of local network adapters to bind to. | All IPv4 adapters |
| Local port | Local port to bind to. | 8080 |
| Reuse address | Allow multiple sockets to share the same local address. | False |
| TCP Nagle algorithm | Delay transmission to reduce the number of small TCP packets. | False |
| TCP reset | Drop TCP connections abruptly with a TCP RST packet. | False |
| TCP keep-alives | Detect connection loss with TCP keep-alive probes. | False |
Read parallelism
(Windows-only)
|
Maximum number of read requests to issue in parallel. | 4 |
| Read block size (B) | Size of each individual read block passed to the driver. | 4KB |
| RX buffer size (B) | Specify the full size of the incoming buffer in the IO thread. | 16KB |
| TX buffer size (B) | Total size of the write buffer. | 16KB |
| Keep read block size | Don’t merge read blocks in RX buffer. | False |
| Keep write block size | Don’t merge write blocks in TX buffer. | False |
| RX buffer full notifications | Write warnings in log whenever RX buffer gets completely full. | False |
Note
An example of an adapter dropdown on a typical Windows laptop is shown below:
